Skip to main content
. Author manuscript; available in PMC: 2013 Dec 7.
Published in final edited form as: Phys Med Biol. 2012 Nov 15;57(23):N469–N479. doi: 10.1088/0031-9155/57/23/N469

Figure 2.

Figure 2

Axial images showing sample VMAT treatment plans with various CTV-to-PTV margins: (A) 0 mm in all directions, (B) 2 mm posteriorly and 4 mm in other directions, and (C) 6 mm posteriorly and 8 mm in other directions. The rectum is shown in green, the CTV in cyan, the PTV in white, and the prescribed isodose line (76 Gy) in red.